Spring MVC + Session属性和多个标签 [英] Spring MVC + Session attributes and multiple tabs

问题描述

我有一些管理员可以更新产品的UI。在我的开发/测试期间，我只打开了一个窗口，一切正常。

I have some UI where an admin can update products. During my dev/testing, I only ever opened one window, and everything worked as it should.

然后客户端正在编辑，他们为不同的产品打开了多个选项卡，保存后，这会导致重复的字段问题。

Then the client was editing, and they opened multiple tabs for different products, and upon saving, this caused a duplicate field issue.

我假设这是 @SessionAttributes 的组合， @ModelAttribute 。打开的最后一个产品是放入会话的产品，所以如果你尝试编辑第一个标签，你实际上会有不正确的产品。

I am assuming this is a combination of @SessionAttributes and @ModelAttribute. The last product opened, is the one put in the session, so if you try edit the first tab, you will actually have the incorrect product.

我的方法是否在下面，使用 SessionAttribute ， ModelAttribute 不正确？

Is my approach below, using SessionAttribute, and ModelAttribute incorrect?

我的控制器：

@Controller
@SessionAttributes({ "product" })
public class ProductController {

@RequestMapping(value = "/product/update/{productId}", method = RequestMethod.GET)
public String update(@PathVariable Long productId, Model model) {
    Product product;
    if (productId == null) {
        product = new Product();
    } else {
        product = Product.find(productId);
    }
    model.addAttribute("product", product);
    return "product/update";
}

@RequestMapping(value = "/product/update", method = RequestMethod.POST)
public String update(@ModelAttribute Product product, BindingResult result,
        Model model) {
    if (result.hasErrors()) {
        return "product/update";
    }
    product = product.merge();
    return "redirect:/product/update/" + product.getId();
}

}

推荐答案

我最终使用自定义SessionAttributeStore，基于Marty Jones的文章

I ended up using a custom SessionAttributeStore, based on the article by Marty Jones

http://marty-java-dev.blogspot.com/2010/09 /spring-3-session-level-model-attributes.html

这篇关于Spring MVC + Session属性和多个标签的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！